package com.djq.hhc.dataprocess;

/**
 * Created with IntelliJ IDEA.
 *
 * @Author: dadd7
 * @Date: 2023/02/27/下午 2:26
 * @Description:
 */
public class MyStringUtils {

    public static String getQQNum(String mail) {
        int length = mail.length();
        return mail.substring(0, length - 7);
    }
}
